Calculate parameters for monostable and astable circuits. Find component combinations for desired pulse width or frequency. Share circuit files via iCloud Drive or AirDrop.
Timer 555 Calculator Pro by Siu Yuen Ho





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Whether you want more options like Calc For Coders or a completely different take on the same concept, our curated list of 31+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.





Calculate parameters for monostable and astable circuits. Find component combinations for desired pulse width or frequency. Share circuit files via iCloud Drive or AirDrop.





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